RICHMOND, Va. (AP) — Friends say one of the U.S. Capitol Police officers injured while defending members of Congress during a shooting at a baseball field is a gregarious gym-goer and hard worker who adores his mother. The other is a high-achieving former college athlete who a former boss says “exudes confidence and dedication.”

Special Agents David Bailey and Crystal Griner, along with colleague Henry Cabrera, who was uninjured, are being hailed as heroes for their response to the gunman who opened fire Wednesday during a congressional baseball team practice in Alexandria.

U.S. Rep. Steve Scalise was among the three others injured, but authorities and lawmakers who were at the park say the officers’ valor prevented what could have been a far worse tragedy.